* {
    margin: 0;
    padding: 0;
}

ul,
li {
    list-style: none;
  
}

.container {
    width: 800px;
    height: 1000px  ;
   margin-left: 30px;
    display: flex;
    border: 1px solid rgb(248, 14, 14);
}

.container .wraper-l {
    margin-right: 20px;
    width: 350px;
    height: 350px;
}

.container .wraper-l .active {
    border: 1px solid rgb(201, 40, 40);
}

.container .wraper-l ul {
    display: flex;
    justify-content: space-between;
   
}




.container .wraper-l .show-box {
    position: relative;
    width: 350px;
    height: 350px;
    overflow: hidden;
   
}
.container .wraper-l .show-box .a{
    width: 350px;
    height: 350px;
}
.container .wraper-l .b{
   width: 70px;
}


/* .container .wraper-l .show-box ol {
    position: relative;
}

.container .wraper-l .show-box ol li {
    position: absolute;
    left: 0;
    top: 0;
   
} */


.container .wraper-l .show-box .mask {
    position: absolute;
    left: 0;
    top: 0;
    width: 150px;
    height: 150px;
    background-color: rgba(255, 255, 0, .4);
    pointer-events: none;
}

.container .wraper-r {
    position: relative;
    width: 420px;
    height: 420px;
    border: 1px solid blue;
    overflow: hidden;
    display: none;
}

.container .wraper-r .a {
    width: 420px;
    height: 420px;
    position: absolute;
    top: 0;
    left: 0;
}